In the story "Water seen as new runway crack threat" published on Sept 27, comments about problems on the airport's taxiways were wrongly attributed to Italian-Thai Development's executive vice- president Sumate Surabotsopon. In fact, the problems _ namely the oxidation of asphalt, water seepage and deterioration of the runway's surface due to daily usage and heat _ were listed in a report on the runway problems and how to solve them, of which Mr Sumate is the main analyst.

Mr Sumate did not say that the mixture of asphalt concrete is responsible for the runway surface damage. Citing the report, he said different types of asphalt concrete were used for different types of surface usages _ a super-strength mix for taxiways and parking spaces, a highly flexible type for runways themselves and ordinary road paving for the rest of the surfaces.

Risks of damage, however, occurred when the southern part of the runway _ which was paved using ordinary road concrete according to the plan _ had to be adapted for heavier, higher-pressure use following the airport's noise problems, according to the report.

Mr Sumate did not "criticise" the masterplan of the airport project as published in the story either. He actually recommended that attention be paid to the seven-year gap when the airport was designed and construction specifications made in 1996 and when construction work began in 2003. Many things could have changed during that period of time, he said.